Some birds put ants in their feathers to ...... the parasites.
attract
feed
tame
get rid of
Camels have ..... eyelids to protect themselves from blowing sand.
three
two
no
single
Many birds eat ..... their weight a day.
10%
half
equal to
twice
Giraffes have no .....
tongue
vocal cords
horn
teeth
During World War II, Americans tried to train ..... to drop bombs.
owls
hawks
bats
crows
Butterflies taste with their .....
hind feet
fore feet
wings
whole body
A bee must visit ..... flowers in order to make one tablespoon of honey.
4,000
4,0000
4,00
40
Most elephants weigh less than the ..... of a blue whale.
tail
fin
young
There are about 2,400 species of snakes in the world. They live almost everywhere–in deserts, forests, oceans, streams and lakes.
True
False
There are visible differences between a male and female snake.